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/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Vivali Keyboard code for Chrome EC */
#include "builtin/assert.h"
#include "keyboard_8042_sharedlib.h"
#include "keyboard_scan.h"
#include "ec_commands.h"
#include "gpio.h"
#include <host_command.h>
#include <util.h>
#include <hooks.h>
/* Console output macros */
#define CPUTS(outstr) cputs(CC_KEYBOARD, outstr)
#define CPRINTS(format, args...) cprints(CC_KEYBOARD, format, ##args)
/*
* Row Column info for Top row keys T1 - T15. This has been sourced from
* go/vivaldi-matrix (internal link for vivaldi scan matrix spec).
*/
__overridable const struct key {
uint8_t row;
uint8_t col;
} vivaldi_keys[] = {
{ .row = 0, .col = 2 }, /* T1 */
{ .row = 3, .col = 2 }, /* T2 */
{ .row = 2, .col = 2 }, /* T3 */
{ .row = 1, .col = 2 }, /* T4 */
{ .row = 3, .col = 4 }, /* T5 */
{ .row = 2, .col = 4 }, /* T6 */
{ .row = 1, .col = 4 }, /* T7 */
{ .row = 2, .col = 9 }, /* T8 */
{ .row = 1, .col = 9 }, /* T9 */
{ .row = 0, .col = 4 }, /* T10 */
{ .row = 0, .col = 1 }, /* T11 */
{ .row = 1, .col = 5 }, /* T12 */
{ .row = 3, .col = 5 }, /* T13 */
{ .row = 0, .col = 9 }, /* T14 */
{ .row = 0, .col = 11 }, /* T15 */
};
BUILD_ASSERT(ARRAY_SIZE(vivaldi_keys) == MAX_TOP_ROW_KEYS);
/* Scancodes for top row action keys */
static const uint16_t action_scancodes[] = {
[TK_BACK] = SCANCODE_BACK,
[TK_FORWARD] = SCANCODE_FORWARD,
[TK_REFRESH] = SCANCODE_REFRESH,
[TK_FULLSCREEN] = SCANCODE_FULLSCREEN,
[TK_OVERVIEW] = SCANCODE_OVERVIEW,
[TK_VOL_MUTE] = SCANCODE_VOLUME_MUTE,
[TK_VOL_DOWN] = SCANCODE_VOLUME_DOWN,
[TK_VOL_UP] = SCANCODE_VOLUME_UP,
[TK_PLAY_PAUSE] = SCANCODE_PLAY_PAUSE,
[TK_NEXT_TRACK] = SCANCODE_NEXT_TRACK,
[TK_PREV_TRACK] = SCANCODE_PREV_TRACK,
[TK_SNAPSHOT] = SCANCODE_SNAPSHOT,
[TK_BRIGHTNESS_DOWN] = SCANCODE_BRIGHTNESS_DOWN,
[TK_BRIGHTNESS_UP] = SCANCODE_BRIGHTNESS_UP,
[TK_KBD_BKLIGHT_DOWN] = SCANCODE_KBD_BKLIGHT_DOWN,
[TK_KBD_BKLIGHT_UP] = SCANCODE_KBD_BKLIGHT_UP,
[TK_PRIVACY_SCRN_TOGGLE] = SCANCODE_PRIVACY_SCRN_TOGGLE,
[TK_MICMUTE] = SCANCODE_MICMUTE,
[TK_KBD_BKLIGHT_TOGGLE] = SCANCODE_KBD_BKLIGHT_TOGGLE,
[TK_MENU] = SCANCODE_MENU,
};
static const struct ec_response_keybd_config *vivaldi_keybd;
static enum ec_status
get_vivaldi_keybd_config(struct host_cmd_handler_args *args)
{
struct ec_response_keybd_config *resp = args->response;
if (vivaldi_keybd && vivaldi_keybd->num_top_row_keys) {
memcpy(resp, vivaldi_keybd, sizeof(*resp));
args->response_size = sizeof(*resp);
return EC_RES_SUCCESS;
}
return EC_RES_ERROR;
}
DECLARE_HOST_COMMAND(EC_CMD_GET_KEYBD_CONFIG, get_vivaldi_keybd_config,
EC_VER_MASK(0));
#ifdef CONFIG_KEYBOARD_CUSTOMIZATION
/*
* Boards selecting CONFIG_KEYBOARD_CUSTOMIZATION are likely to not
* want vivaldi code messing with their customized keyboards.
*/
__overridable const struct ec_response_keybd_config *
board_vivaldi_keybd_config(void)
{
return NULL;
}
#else
static const struct ec_response_keybd_config default_keybd = {
/* Default Chromeos keyboard config */
.num_top_row_keys = 10,
.action_keys = {
TK_BACK, /* T1 */
TK_FORWARD, /* T2 */
TK_REFRESH, /* T3 */
TK_FULLSCREEN, /* T4 */
TK_OVERVIEW, /* T5 */
TK_BRIGHTNESS_DOWN, /* T6 */
TK_BRIGHTNESS_UP, /* T7 */
TK_VOL_MUTE, /* T8 */
TK_VOL_DOWN, /* T9 */
TK_VOL_UP, /* T10 */
},
/* No function keys, no numeric keypad, has screenlock key */
.capabilities = KEYBD_CAP_SCRNLOCK_KEY,
};
__overridable const struct ec_response_keybd_config *
board_vivaldi_keybd_config(void)
{
return &default_keybd;
}
#endif /* CONFIG_KEYBOARD_CUSTOMIZATION */
static void vivaldi_init(void)
{
uint8_t i;
/* Allow the boards to change the keyboard config */
vivaldi_keybd = board_vivaldi_keybd_config();
if (!vivaldi_keybd || !vivaldi_keybd->num_top_row_keys) {
CPUTS("VIVALDI keybd disabled on board request");
return;
}
CPRINTS("VIVALDI: Num top row keys = %u",
vivaldi_keybd->num_top_row_keys);
if (vivaldi_keybd->num_top_row_keys > MAX_TOP_ROW_KEYS ||
vivaldi_keybd->num_top_row_keys < MIN_TOP_ROW_KEYS) {
CPRINTS("VIVALDI: Error! num_top_row_keys=%u, disabled vivaldi",
vivaldi_keybd->num_top_row_keys);
vivaldi_keybd = NULL;
return;
}
for (i = 0; i < ARRAY_SIZE(vivaldi_keys); i++) {
uint8_t row, col, *mask;
enum action_key key;
row = vivaldi_keys[i].row;
col = vivaldi_keys[i].col;
if (col >= KEYBOARD_COLS_MAX || row >= KEYBOARD_ROWS) {
CPRINTS("VIVALDI: Bad (row,col) for T-%u: (%u,%u)", i,
row, col);
ASSERT(false);
}
mask = &keyscan_config.actual_key_mask[col];
/*
* Potentially indexing past meaningful data,
* but we bounds check it below.
*/
key = vivaldi_keybd->action_keys[i];
if (i < vivaldi_keybd->num_top_row_keys && key != TK_ABSENT) {
/* Enable the mask */
*mask |= BIT(row);
/* Populate the scancode */
set_scancode_set2(row, col, action_scancodes[key]);
CPRINTS("VIVALDI key-%u (r-%u, c-%u) = scancode-%X", i,
row, col, action_scancodes[key]);
if (key == TK_VOL_UP)
set_vol_up_key(row, col);
}
}
}
DECLARE_HOOK(HOOK_INIT, vivaldi_init, HOOK_PRIO_DEFAULT);
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